Free Products in Trade Promotions 
You use this function to offer rebates in the form of free products within a trade promotion. If a customer reaches a certain amount of revenue or sells a certain quantity of products within a predefined period of time, the customer receives an agreed amount of free products. The corresponding billing documents form the basis for cumulating the quantities or amounts.
A free sales order containing the free products as order items is generated for the delivery of the free products. Unlike free goods, the free products are not delivered or invoiced together with the products ordered.
By assigning an individual account, account hierarchy, or target group, you can control which customers receive these special conditions.
You can define free products as being either valid for individual products or valid for all products in a trade promotion.
Integration
This function is integrated with CRM rebate processing.
Prerequisites
You have performed the following tasks:
Defined a planning profile group that allows the creation of free products (plan type Free Goods and Product-Independent Free Goods).
Make sure that the planning profile of the planning profile group is suitable for the planning of free goods across multiple sales orders. To do so, in Customizing for Customer Relationship Management (CRM), choose
Customer
Relationship Management 
Trade Promotion Management
Key Figure Planning Define Planning
Profile Groups 
.Maintained the Customizing settings for condition generation.
To do so, in Customizing for Customer Relationship Management (CRM), choose
Customer Relationship Management
Trade Promotion Management Trade
Promotions Condition Maintenance
.Activated the Free-Goods Rebates function.
To do this, go to Customizing for Customer Relationship Management (CRM) and choose
Customer Relationship Management
Rebate Processing Configure Application
.Defined a condition type for which the indicator Cond. Type FrGds has been selected.
To do this, go to Customizing for Customer Relationship Management (CRM) and choose
Customer Relationship Management Rebate
Processing Set Up Rebate Determination
Create Condition Types .Defined a rebate profile and assigned it to the object type Marketing Project: Trade Promotion Management (TPM).
To do this, go to Customizing for Customer Relationship Management (CRM) and choose
Customer Relationship Management
Rebate Processing Rebate Profiles
Assign Rebate Profile .
Activities
Plan your trade promotion. To do this, enter the general data (type, planning profile group, planning account, and dates) and assign the required products, free products, accounts or target groups.
Under Volumes and Trade Spends Planning, you define the volumes and amounts that need to be reached as well as the quantity of free products. You also trigger the condition generation.
You release the trade promotion, thus generating campaign determination records.
If a sales order containing one of the trade promotion products is generated by one of the accounts participating in the trade promotion within the promotion time period, the system assigns the trade promotion automatically.
After the billing document has been generated for the sales order, the billing request amounts are cumulated in the rebate due list.
You trigger the rebate settlement from the rebate due list. The system generates a settlement document and forwards it to Accounting. Once the document has been confirmed by Accounting, the system automatically creates a free sales order containing the free products as items.